Liquid-fuel burner.



No. 762,262. PATENTED JUNE 7, 1904.

S. TROOD.

LIQUID FUEL BURNER.

APPLICATION FILED 00T.15, 1902.

N0 MODEL.

3 7115 fllizmy 2 SHEETS-SHEET 1.

PATEN'IED JUNE 7, 1904.

I S.TRO0D.

LIQUID FUEL BURNER.

APPLICATION FILED OUT. 15, 1902.

2 Sums-sum 2.

N0 MODEL.

Patented June *7, 1904.

UNITED STATES PATENT OFFICE.

sAMUEL rnoon, OF NEW YORK, N. Y.

LIQU|D*FUEL BURNER.

SPECIFICATION forming part of Letters Patent No. 762,262, dated June 7,1904.

Application filed October 15, 1902.

The present invention refers to hydrocarbon-burners for usein'cooking-stoves, furnaces, steam-boilers, &c.

The ob ect of the invention is to provide a device for burning volatileliquids as, for in stance, crude oil or other hydrocarbons which shallbe simple and effective in construction and shall avoid the defects ofthe" devices heretofore in use, such as the retortburners, Vaporizers,&c.

The invention relates to the class of the pan burners, and isillustrated in its preferred form in the accompanying'drawings', whichform a part of the present invention.

Figure 1 is a perspective view of the device appliedto a commoncooking-stove. Fig. 2

is a transverse cross-section of a part of such.

a stove. Figs. 3 and 4 are views of the fuelpot. Fig. 5isa perspectiveview of an'airport. Fig. 6 is a-similar view, in crosssection, of amodified air-port. Fig. '7'is a'detailed view of' the cleaning-port; andFig. 8 is a perspective View of a bank of the devices for use ina'furnace, steam-boiler, &c.'

l in Fig. 1 is the casing of a stove, and 2 is the grate of thefire-box.It is one of the important features of the devicethat it can'be readilyinserted into the fire-box of any stove without necessitating anymaterial changes in.

the same.

3 is a pan or trough for the purpose of-receiving the liquid fuel andhas an inclined rear end 4 for the purpose of easily removing andpushing off into the ash-box by means of a suitable rake any scum whichmay be formed during the process of combustion.

In the use of crude oil it is found that a considerable quantity ofpitch is left in the pan after the volatile portions of the oil havebeen thrown off by combustion and the action of the heat, and as suchpitchcan best be reheated state.

Serial N0.'12'7,335. (No model.)

to do so while the device is in action and in a 5 is a support forholding the pan 3. It

rests on the grate 2 and may be moved with I the pan to any desiredposition on the grate.

6 is the front end of the pan 3, which forms a channel and maypreferably be covered by a plate or lid 7 and communicates, by means ofthe pipe 8, with the fuel-pot 9. The fuelpot 9, Figs. 3 and 4, containstwo com.part-.

ments, one compartment, 10, for holding a supply of liquid fuel and oneother compartment,

;12, as an overflow, which latter is preferably connected to a drip panor receptacle 14 by means of a pipe 13. If desired, this receptacle 14may be covered with a lid. the drawings.) The fuel-pot 9 receives itsfuel from a storage-receptacle by means of a supply-pipe 11. t I

The combustion-chamber is formed in part by a vault or roof 15, made offire-clay or other highly-refractory material. This roof is so shapedthat it may be placed in and beheld by the fire-brick lining of thefire-box of a stove on account of being trapezoidal in crosssection. Thespace between the fire-brick liningand the roof may be filled withfire-clay. In the door-opening of the fire-box is placed an air-port 17,havinga series of air-holes 18. This port 17 may be made of metal or, asshown in modification 23, Fig. 6, of fire-brick, in' which latter casethe air holes or channels 24 may be formed as indicated in the drawings.Below the air-port 17 is a cleaningport 19, consisting of a rod 20,having thereon a series of movable bars 21, separated by washers 22.

' It is clearlyto be seen that when a rake 25 is pushed through the bars21 for the purpose of cleaning the surface of the liquid fuel in the pan3 all the bars lifted by the rake will return to their normal positionexcept the bar under which the rod of the rake is located. By thisarrangement the amount of air supplied to the combustion-chamber throughthis port 19 will remain practically constant, whereas when a solid lidhaving per- (Not shown in forations would be used instead of the movablebars 21 the supply of air would greatly vary during the time of cleaningthe pan 3.

The pan-burners heretofore in use did not have a sufficient air-supply.In the present case there are three different ports for the air. Thefirst is formed by part 4: of pan 3 and the rear end of the roof 15. Itssize may be varied by changing the position of the pan 3, and the mostsuitable size may be retained after once adjusting'it. The secondair-port is formed by the interstices between the movable bars 21. Thethird air-port is formed by the movable box 17 which may be used toregulate the distance between the front end 16 of the roof 15 and thebox 17 The combustion is initiated by pouring oil in the fuel-pot 9 to asuflieient height so as to cover the pan with fuel. A rag, wick, orpaper is ignited and placed in the fuel on the pan, which fuel will thencommence to burn, receiving its supply of air primarily from the rearair-port. The flame will strike against the roof 15 and heat the sameand will finally find its way between the air-port 17 and rooffront 16into the upper compartment of the stove. The heat produced therein andthe draft of the chimney will draw more air through port 19, and port 17may then be so adjusted that the width of the flame-port formed by itand the roof-front 16 is such as to produce substantially perfectcombustion of the fuel. The heated roof 15 will reflect its heat untothe surface of the fuel in pan 3 and will tend .to vaporize the same,and the flame produced will be nearly perfect. It is of importance thatsome of the air-holes 18 are located higher than the roof-front 16, soas to supply air also to the upper compartment of the stove.

I claim 1. A liquid-fuel burner comprising a pan; a partition locatedabove said pan and forming a rear air-port with the same; a frontair-port substantially on the level of said pan; a movable body havingan air-port and located above said front air-port and projecting intothe combustion-chamber and forming with said partition anadjustablefiameport; and means to supply liquid fuel to said pan, theorganization being such that the draft of air. may be regulated byshifting said movable body.

2. A liquid-fuel burner comprising a combustion-chamber; a pan withinthe chamber and adapted to contain liquid fuel; a roof portion abovesaid pan and a body traversed by an air-port and located at the front ofand above said pan and projecting into the combustion-chamber, adaptedto admit air to such combustion-chamber and adjustable relatively tosaid roof portion, the organization being such that the flame-space maybe increased or diminished by the shifting of said member.

3. The combination with a combustionchamber, of means to hold fluidduring the combustion; means to adjust the supply of air to the rear ofthe holdingmeans; a flame-port comprised in part of a roof located abovesaid holding means adapted to direct the course of the flame and topermit the flame to pass the end of said roof and to heat the same, andsaid roof adapted to reflect heat onto said holding means, and meansadjustable toward and from the said roof to supply air to the front ofthe holding means and to the flame in its passage past the end of saidroof to regulate the flameport and supply air thereto.

4. The combination with a combustionchamber, of a fuel-containeradjustable toward and from the rear wall thereof to form an adjustableair-port, a port comprising a plurality of depending movable members atthe front of the chamber, and a body provided with an air-port andadjustably. located above the latter and adapted to form an adjustableflameport with the roof of the combustion-chamber; the organizationbeing such that the current of air fed to said combustion-chamber may becontrolled by shifting the fuel-container, thereby opening or closingsaid adjustable rear air-port, and also by shifting said adjustablebody.

5. 'In a liquid-fuel burner. the combination with a combustion-chamber,of a plate to receive the liquid fuel; an air-portinto the chamber atthe region of the plate; and a grating in such port comprising a numberof swinging bars each independently movable and organized to yield toadmit a scraper to the pan, to return to normal position after itsentrance and exit, and the bar at the region of the handle of thescraper to yield to accommodate such handle. i

6. In a liquid-fuel burner the combination with a combustion-chamberhaving an opening at one side, of a burner-pan therein having a slantingsidewall at its end farthest from said opening,-and a grid ofindependently-vieldable members to cover said opening to admit acleaning-tool, close behind the same and adjust itself to the handlethereof.

In testimony whereof I have hereunto set my hand, in the presence of twosubscribing witnesses, this 11th day of October, 1902.

SAMUEL TROOD.

In presence of RALPH JULIAN SAonnRs, CECIL E. HARING.

IIO

